/*
 *  Copyright 2010 BetaSteward_at_googlemail.com. All rights reserved.
 * 
 *  Redistribution and use in source and binary forms, with or without modification, are
 *  permitted provided that the following conditions are met:
 * 
 *     1. Redistributions of source code must retain the above copyright notice, this list of
 *        conditions and the following disclaimer.
 * 
 *     2. Redistributions in binary form must reproduce the above copyright notice, this list
 *        of conditions and the following disclaimer in the documentation and/or other materials
 *        provided with the distribution.
 * 
 *  THIS SOFTWARE IS PROVIDED BY BetaSteward_at_googlemail.com ``AS IS'' AND ANY EXPRESS OR IMPLIED
 *  WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
 *  FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL BetaSteward_at_googlemail.com OR
 *  CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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 *  authors and should not be interpreted as representing official policies, either expressed
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 */

package mage.abilities.effects.common;

import mage.Constants.Outcome;
import mage.abilities.Ability;
import mage.abilities.costs.Cost;
import mage.abilities.effects.OneShotEffect;
import mage.game.Game;
import mage.game.stack.StackObject;
import mage.players.Player;

/**
 *
 * @author BetaSteward_at_googlemail.com
 */
public class CounterUnlessPaysEffect extends OneShotEffect<CounterUnlessPaysEffect> {

	protected Cost cost;

	public CounterUnlessPaysEffect(Cost cost) {
		super(Outcome.Detriment);
		this.cost = cost;
	}

	public CounterUnlessPaysEffect(final CounterUnlessPaysEffect effect) {
		super(effect);
		this.cost = effect.cost.copy();
	}

	@Override
	public CounterUnlessPaysEffect copy() {
		return new CounterUnlessPaysEffect(this);
	}

	@Override
	public boolean apply(Game game, Ability source) {
		StackObject spell = game.getStack().getStackObject(source.getFirstTarget());
		if (spell != null) {
			Player player = game.getPlayer(spell.getControllerId());
			if (player != null) {
				cost.clearPaid();
				if (!cost.pay(game, spell.getControllerId(), spell.getControllerId(), false)) {
					return game.getStack().counter(source.getFirstTarget(), source.getSourceId(), game);
				}
			}
		}
		return false;
	}

	@Override
	public String getText(Ability source) {
		return "Counter target " + source.getTargets().get(0).getTargetName() + " unless its controller pays " + cost.getText();
	}

}
